Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Disaggregated by Line of Business

The following table presents the Company’s service revenues disaggregated by line of business (in thousands):

	Three Months Ended March 31,
	2021		2020
Accountemps	$	417,116	$	489,884
OfficeTeam	220,467		239,979
Robert Half Technology	172,239		196,652
Robert Half Management Resources	183,271		211,878
Elimination of intersegment revenues (a)	(103,818)		(46,273)
Temporary and consultant staffing	889,275		1,092,120
Permanent placement staffing	111,703		120,489
Risk consulting and internal audit services	397,402		294,082
Service revenues	$	1,398,380	$	1,506,691

(a) Service revenues for Accountemps, OfficeTeam, Robert Half Technology and Robert Half Management Resources include intersegment revenues, which represent revenues from services provided to the Company’s risk consulting and internal audit services segment in connection with the Company’s blended business solutions. Intersegment revenues for each line of business are aggregated and then eliminated as a single line.

Schedule of Contract Liability Activity

The following table sets forth the activity in contract liabilities from December 31, 2019, through March 31, 2021 (in thousands):

	Contract Liabilities
Balance as of December 31, 2019	$	12,948
Payments in advance of satisfaction of performance obligations	25,614
Revenue recognized	(20,687)
Other, including translation adjustments	377
Balance as of December 31, 2020	$	18,252
Payments in advance of satisfaction of performance obligations	12,888
Revenue recognized	(16,510)
Other, including translation adjustments	717
Balance as of March 31, 2021	$	15,347